Today’s AI News · 2026-09-09 · 23 min
Today we're covering the biggest AI stories of September 9th, 2026. OpenAI published a proof from an unreleased internal model, "significantly more capable" than the just launched GPT-6 Astra, claiming to solve Navier-Stokes, one of math's seven Millennium Prize problems, running roughly 10,000 agents for 88 hours at an estimated cost of millions of dollars, though the win came with a credit dispute attached, NYU's Tristan Buckmaster and Anthropic's Levent Alpöge had spent a year on a similar approach, fed drafts into Codex along the way, and posted their own partial results the night before OpenAI's announcement, with OpenAI saying it never saw their work and no specific user data was accessed, while stopping short of ruling out that usage data broadly may have helped train its models. Meta introduced Muse, an always-on personal AI agent with a text message style interface that runs on its own cloud computer to book tables, send emails, and shop, working inside its own app or through WhatsApp with monthly tiers at $20 and $100, US only for now.
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